"Didicoy (Romani diddicoi; also diddicoy, diddycoy) was a 19th and early 20th century term of the Roma (Gypsies) for travellers with no Roma blood. There was often fierce competition between the groups, and the Roma tended to blame their own reputation for criminality on the didicoys masquerading as Gypsies.
Among the settled population in Britain, ironically, the term became a slang expression for 'Gypsy'." _Wikipedia
"Didicoy (Romani diddicoi; also diddicoy, diddycoy) was a 19th and early 20th century term of the Roma (Gypsies) for travellers with no Roma blood. There was often fierce competition between the groups, and the Roma tended to blame their own reputation for criminality on the didicoys masquerading as Gypsies.
Among the settled population in Britain, ironically, the term became a slang expression for 'Gypsy'."
_Wikipedia